Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ecc0163e94f928a…

MALICIOUS

PDF

40.4 KB Created: 2020-08-04 11:39:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 324efe2f22858a790529fd3487b259b7 SHA-1: 89ef7a9096a5d711c19c0ef3bacb2cf7d4c7686e SHA-256: 1ecc0163e94f928a4600ddc945e802a24816543392ea9f42024e1e670338af98
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to appear as a coloring page, but it redirects to a malicious domain. The ML classifier strongly indicates maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to known malicious infrastructure. The document body, though heavily obfuscated, contains the URL that initiates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=bumblebee+transformer+coloring+page+pdf In PDF document text
    • http://files.stephengatt.com/uploads/1/3/2/3/132302951/ba639fe7500afa.pdfIn PDF document text
    • http://files.bemanco.com/uploads/1/3/2/3/132303024/tevev-zijebunot-livir-laguxofuj.pdfIn PDF document text
    • http://files.travisbenrobinson.com/uploads/1/3/1/8/131871569/a9d0d2ec0a5a.pdfIn PDF document text
    • http://fekaga.evenanerd.com/uploads/1/3/1/4/131483281/7349930.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/wuxupevak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1549/6092/files/radiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/86655207654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/14246009312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/jagitigizuzekufomog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5190/files/precalculus_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/niluwagotexuzutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/bigibijaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0476/2011/files/lisuvojipax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/bexibovevilanij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/73418161627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3630/files/26390435033.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F45 5664 bytes
SHA-256: 11cff5748e00ad82baff1a5ca17016c12e6bd756554775dc3b3a89c31fb9df40
font_01_sfnt_off00007269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7269 10008 bytes
SHA-256: 974406a4ba827159ba8db81565dedd1731343245c46c4dd051d48177001d3131

Open this report in the interactive analyzer, or submit your own file for analysis.